Virtual Roaming Systems for GSM, GPRS and UMTS: Open Connectivity in PracticeЭлектронная книгаVirtual Roaming Systems for GSM, GPRS and UMTS: Open Connectivity in PracticeавтораArnaud Henry-LabordereРейтинг: 5 из 5 звезд5/5Сохранить Virtual Roaming Systems for GSM, GPRS and UMTS: Open Connectivity in Practice на потом